Which of the following describes how electrical current flows?

from low voltage to high voltage

from the detector the source

from high voltage to low voltage

from the detector to the next detector

Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.

Can you match these to the correct definition